Coin-controlled lock.



WPS. FARNSWORTH.

GOIN GONTROLLED LOCK.

APPLICATION FILED MAY 14, 1912.

1,093,175. Izq

APatelltel Apr. 14, 1914.

TW-finesse?? ffii? if? UNITED sTATEs PATENT on WILLIS s. FARNsWOItTH, oF SAN FRANCISCO, CALIFORNIA, AssIGNon'TO COIN oon- TROLLFD LOOK Co., oF sAN FnANCIscO, CALIFORNIA, A Conronnrroiv OF CALI- vio ' FORNIA.

. com-CONTROLLFD LOCK.

i Specification of vLetters Patent. Patented Apr, 14,19j/gt* Application led May 14, 1912. Serial No. .$97,142.

` l*This invention relates to a coin controlled lock, and particularly pertains to mecha nism -for 'controlling theI operation of the lock by means of coins, slugs or other tokens.

lt is the object of this invention to'provide a lock which is so constructed and arranged that it canrbe operated only by the depositing of a proper coiny or token.

A furtherobjectis to provide a coin con* 'trolled device which is adapted to be appli'` to the ordinary cylinder. locks now generally in use', with but slightralteration of the lock structure.

Another object is to provide a coin controlled lock in which the use of dogs, trip levers, pawls, or other tripping and' releasi ing mechanisms are dispensed'with, .thereby producing a coin-controlled lock, which is, simple in construction and eicient and reliable lin operation.

Still another object is to providel a coin controlled lock which is so `arranged that the coin employed in operating theloclr will be exposed when the bolt of the lock is-in its locked posit-ionp'and which is not liable tobecome choked by the insertion of additional coins, and to provide means for' automatically partially discharging the key when the bolt is thrown and prevent the vbolt being accidentally retracted.v l

- Other objects will appear in the followl ing specifications. v

The invention consistsof vthe parts and the combination 'and construction of parts as hereinafter more fully described and claimed, having reference to the accompany-y ing drawings, in which- Figure 1 Is a rear jview of the lock with. casingremoved, showing the-bolt in its re- -tracted position and lockedagainstmovement. Fig. 2 is a similar view showingthe bolt in its advanced position.' Fig. '31s: a

detail showing' the b olt as retractedl and,v L

jacent to theV lattenas shown 1n ,-Fig. 5; the

showing the, coin-*inthe position assumed following its deposit. .Fig.` is a sii'nv view showing the bolt in its advanced pesi I tion. Fig. 5 is a horizontal section on the line X-X, Fig; 3. Fig. 6 is' a detail vertical section of a cylinder lock. FigI 7 is a detail vertical section on the line Y-Y, Fig. 3.

In the drawings, A represents a faceplate or escutcheon which is designed to be placed on the outer face of the doorv or casing to which the lock is ,to be applied; this escutcheon plate being' formed with a slot 2 for the reception of coins, and which slotopens to `a coin chiite '3 mounted on the back of the escutcheonA.

A base plate et, onwhich the lock mechanism is supported, is mounted on the back of the escutcheon A and is provided with an outwardly projecting iiange 5 which is formed with a vertical slot 5 arranged to receive thc forward end of a bolt 6'. The bolt 6 parallels the plate 4 and is spaced a short distance therefromas shown in Fig.

5, andv is supported andguided at its rear end upon a bracket 7 formed on the base plate 4l; and projecting beneath the lower edge of the bolt; the bracket 7 being slotted to extend on each eide of the bolt, as shown in Fig, 7, A pin 8 is positioned on the bolt G to strike the bracket 7 on its forward face to limit the rearward movement of the bolt,

Mounted on the base plate 4l, above the bolt G, is an ordinary cylinder lock of any suitable type, which isv'here shown as convsisting of a barrel B mounted in a cylindrical casing C and having the usual loose pins or tumblers D and E which are actuated by the insertion of a key F in the keyhole G extending longitudinally through the barrel B. A bit or projecting pin 9 is suitably attached to the inner end of the barrel B adjacent to the base plate t and is normally positioned to extend at an angle into a notch or slot 10 formed in th@- Upper 'edge of the bolt 6. Mounted'on the bolt 6 and extending toward thebase plate 4 is aV pin 11 which is positioned on the bolt adjacent to its lower edge. Mounted vonI the* base plate isa pin 12, which extends across the 'space'between the base plate 4 and the inner face ofV the bolt 6 and'terminates ad pins 11and 12. being diagonally spacedl apartA adistance slightly greater than the .diameter of the coin to be employed.

" As-a meansfor preventing the bolt '6 be ingfadvanced by the rotation of the lock vbarrel-Ra hump 13 is formed on the lower edge ofthe bolt rearward of and' adjacent' ward edge of the slot causes the hump 1 3.

to tend to ride over the supporting edge ofA the bracket- 7, which action, however, is normally prevented by means of a plate spring 14'mounted :on the lower edgeof the bolt 6,

the outer end of which abuts'against a stopv 15 on ythe .plate 4, asshown in Figs. 1 and .20 6, thus preventing the `-forward. movement of the bolt- The rear end of the bolt carrying the hump l'isnorinally retained in its lowermost position by means of av plate spring 16 on the upper edge of the bolt.

.f25.1': The slot ic Vis formed in the boit e in such a position and of such ywidth as to limit the movement of the bit 9 and thereby hold the barrel B in such a position las to dispose the pins E out of alinemeiit with the loose pins D mounted in' the casing C, as shown in Fig. 1; vthe pins E bearing against the walls' inside 'of' the cylinder C'. When the parts are in this position, the key F is blocked againstremoval, as yiis well known in locks of the Yale type inl'which the key can-o`nly be withdrawnI when-the keyhole ,andl key stand in` al certain posiy tio'nyusu'ally vertical, to dispose the pins E in the barrel B in alinement with the pins 40 'D in the cylinder C' and allow the pins E to move up into the recesses holding the pins D as they ride over the serrations on 'the key F when the 'latter is inserted or I withdrawn.

*14,5 Fromth'e foregoing itqwill be seen that when the -bolt 6 is in the retracted position shown in Fig. 1', it cannot be advanced, nor can the barrel B of the lock be vturned suiicientl'y--far to admit vof theJ withdrawal of thejkey F therein; the hump 1.3 acting in conjunction withthe' spring 14 and shoulder 15 to block the boltf against Iforward movement,which blocking of the boltV causes the forward edge of the slot ltoli'mit the movement of lthe bit 9 on the bari-el'lBrf The coin-chute 3 leads t'o and terminates above the space between the boltI 6 and base plate 4, as shown in Figs. l and Q ins-uch .60 a manner that'when a coin v1s discharged vtherefrom the coin will fall between the pms 11-12 and 'be supported uponthe pins 11e-12 and a finger 17 on the spring 14 as shown 'in dotted linesin' 3.21

when the 'bolt'- is in its retracted' position,

.barrel B, .as shown in Figs. 5 and 6. The

notaires In. the operation of ...his invention, a coin 18 -of-the proper value, or a suitabletoke'n,

. is inserted in the slot 2, from which it passes down the chute and is delivered behind the bolt 6 only to come to reston the 7o respectively movable and .iixed pinse'flland v 'i 12 and the finger 17, as just describedjgf'the' pins 11 and 12 being spaced apart according to the diameter of the coin to be used. The key F is' then operated to rotate the 75 barrel B to turn the'bit 9 in the direction of the arrow in Fig. 3 and thereby. advance the bolt 6 asliort "distance The pin 11.will strike .the edgeof the coin 18, at

a point above its middle .o'n the initial for- 85 ward movement of th ebelt 6, and thus 'cause the coin to bear against the xed pin 12 which acts to deflect he coin 18 in a down ward direction, which-causes the coin to bear upon the linger 17 on the' spring"14 and' g5 thereby throws the outer end. of the spring 14 out of engagement with ithe shoulder 15. The bolt 6 isl now moved .-t'o its advanced position and the coi-n 18 is released from .the pins 1li-12v and rests upon the finger 90 17 and against the rear face ofthe flange4 5, as shown in dotted lines 'in Fig. 4, in which position-it remains as'long as the bolt is advanced; the coin being exposed to view through -a perforation 19 formed in the 95 plates A and 4. The key F may now be removed froml the barrelBv as the pins D and' -E will'be in alinement. Shoulda Seeond coin be deposited'in the chute 3 either v before or-. after the advancing of the bolt 6, it will strike the coinV 18 and will pass be-l hind the bolt 6 rearward of the pin 11 and the inger-17, and will fall into any desired receptacle` below the lock. When the bolt is retracted,'which is done by re-i'nserting the 105 .key F in the barrel B and turning the latter in the direction of the arrow in Fig. 4 to cause the bit 9 toengage the rear edge of the slotv 10, the'finger 17 wil-l be withdrawn from beneath the coin 18 and the 110 latter will be allowed to dropinto any suitable rece'ptacle, not shown. The movement of. the bolt 6 is retarded in either direction by means of the plate springs 14 and 16 on l Y the bolt,- which bear against rigid portions of the lock in such a manner as to normally retain the bolt in its lowermost position and at the same time prevent too easy movement thereof.

Means are provided for partially eiecting the key F from the barrel B when thebolt 6 .has been advanced, which means is here shown as consistingof a plate spring 2O mounted to bear against the inner end of` the key F is, of such length .that when it is in- Lvserted in the barrel B it will project a short distance beyond theinner end of the latter andf'contact the spring 20; the spring 2 0 thusoering 'a resistance to the insertion` of); 3Q.

the key in the lock so that any possibilit-yet the bolt being accidentally retracted will be obvialied.

Having thus described my invention what I cieini and desire to secure by Letters Pntent isl. ln a lock, the conibiimtion with n bolt, e' key operated bit engaging the bolt, n plate spring on the bolt, a. rigid shoulder engaged i0 .by the spring, means on the spring for snpporting a coin, and means engagenblev with the coin controlled by the bit operating through the coin tothrow the spring ont of engagement with the shoulder.

2. In n'loclnthe combination with n bolt, n key operated bit engaging the bolt, e plate spring on the bolt', a rigid shoulder engaged by the spring,.meanson the spring for snpporting coin, and means engageable with the coin controlled by the bit operating through the coin to throw the spring out fof `engagement with the shoulder, comprisporting n coin, means engageaiblev with the' coin controlled by the bit operating through the coin to throw the spring out of engage-v ment with the shoulder, comprising n pin on the boltand avxed, stationary pin spaced therefrom, and means for delivering e coin between said pins to the spring'.

In testimony whereof I have' hereunto set my hand in the presenceof two subscribing witnesses.

WILLIS S. FARNSWORTH. Witnesses:

JOHN H. HERRING, GENEVIEVE S. DONELIN. 

